This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 23 |
| 3 | 29 |
| 4 | 59 |
| 5 | 521 |
| 6 | 421 |
| 7 | 47 |
| 8 | 67 |
| 9 | 613 |
| 10 | 1013 |
| 11 | 1019 |
| 12 | 1619 |
| 13 | 1627 |
| 14 | 827 |
| 15 | 811 |
| 16 | 1511 |
| 17 | 1523 |
| 18 | 1223 |
| 19 | 1217 |
| 20 | 2017 |
| 21 | 2029 |
| 22 | 1429 |
| 23 | 1433 |
| 24 | 2633 |
| 25 | 2647 |
| 26 | 1847 |
| 27 | 1831 |
| 28 | 2531 |
| 29 | 2539 |
| 30 | 2239 |
| 31 | 2237 |
| 32 | 2437 |
| 33 | 2441 |
| 34 | 3041 |
| 35 | 3049 |
| 36 | 3449 |
| 37 | 3457 |
| 38 | 2857 |
| 39 | 2843 |
| 40 | 3643 |
| 41 | 3659 |
| 42 | 3259 |
| 43 | 3251 |
| 44 | 3851 |
| 45 | 3853 |
| 46 | 4253 |